Browsing by Author "Sozer, Omer Taha"

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How Is Variability in Physiological Responses To Social Stress Related To Punishment and Reward Sensitivities? Preliminary Findings From the Revised Reinforcement Sensitivity Theory of Personality Perspective
(Taylor & Francis Ltd, 2024) Sozer, Omer Taha; Dereboy, Cigdem; Izgialp, Ipek
Objective: Although personality traits are assumed to have biological/physiological foundations, research has yielded mixed evidence regarding the relationship between personality and physiological stress responses. Moreover, the field has often overlooked the contemporary neuroscience-based personality approach, known as the Reinforcement Sensitivity Theory (RST) of Personality, in stress research. Method: The present study examined the relationship between the revised RST's personality dimensions and heart rate and skin conductance level (SCL) in response to the Trier Social Stress Test in a sample of 61 healthy university students. Results: Piecewise latent growth curve analysis controlling for the participants' current life stress, smoking use, and caffeine intake revealed that individuals with higher behavioral inhibition exhibited higher physiological reactivity, whereas those with high reward sensitivity showed smaller heart rate reactivity. The behavioral disengagement facet of the behavioral inhibition scale was associated with reduced sympathetic arousal during the stress task. Additionally, reward interest was associated with a larger recovery of SCL. Conclusion: Results were generally in line with the revised theory. The study findings were discussed within the paradigm of the approach-avoidance conflict and highlighted the importance of reward sensitivity in stress resilience.
Religiosity, Identity Confusion, and Psychological Well-Being in Turkish University Students: the Moderating Role of Religious Orientation
(Springer, 2023) Sozer, Omer Taha; Eskin, Mehmet
Research conducted in industrialized democracies where Christianity is the prevailing religion has suggested that religiosity may play an important role in identity development and well-being. This study examined the associations between religiosity, religious orientation, identity confusion, and psychological well-being in 488 Turkish university students. The results revealed that extrinsic religious orientation was positively associated with identity confusion. On the other hand, religiosity, extrinsic religious orientation, and identity confusion were negatively associated with psychological well-being, while intrinsic religious orientation was positively associated with psychological well-being. Moderation analysis indicated that extrinsic religious orientation could facilitate psychological well-being in the midst of severe identity confusion.
Turkish Version of the Reinforcement Sensitivity Theory of Personality Questionnaire: Adaptation Study
(Kare Publ, 2022) Sozer, Omer Taha; Sener, Gamze; Dereboy, Cigdem
Objective: This study aimed to adapt the Reinforcement Sensitivity Theory of Personality Questionnaire (RST-PQ) to the Turkish language and measure its factor structure and psychometric properties. Method: In total, 418 volunteers (301 women) participated in the study. Participants were undergraduate students at Adnan Menderes University, Aydin, Turkey, and were aged between 18 and 26 years (M=21.53). They completed the Turkish version of the RST-PQ, Behavioral Inhibition System/Behavioral Activation System (BIS/BAS) Scales, Big Five Personality Characteristics Scale (BFPCS), Eysenck Personality Questionnaire Revised-Abbreviated Form (EPQR-A), State-Trait Anxiety Inventory (STAI), and UPPS Impulsive Behavior Scale. Results: Both exploratory and confirmatory factor analyses supported a six-factor structure aligned with the original questionnaire: Flight Freeze System (FFS), BIS, and four factors that are related to BAS, which are reward interest, goal-drive persistence, reward reactivity, and impulsivity. Cronbach's alpha reliability coefficients of six factors were found to be 0.79, 0.93, 0.78, 0.87, 0.79, and 0.69, respectively. The convergent and divergent validity of the scale was supported by correlations with the existing personality/trait scales. Conclusion: Our findings revealed that the Turkish version of RST-PQ has favorable reliability and validity in the Turkish student sample. The strengths and limitations of the questionnaire were further discussed in the study.